Skip to main content

how to fix iPhone XS Max Touch Screen Not Working problem - Phonefix

Here is an drop damaged iPhone XS Max, the problem is that the iPhone XS Max screen is not working after dropping. The iPhone screen looks good, but the touch function is not available. We tried reset and restore the iPhone XS Max, but the problem is still there. Now, we suspected the iPhone XS Max has hardware damage.



Firstly, we need to disassemble the iPhone XS Max. Use screwdrivers to remove the screws at the bottom of the screen, and then use LCD sucker to open the screen. Remove the iPhone display assembly, disconnect the iPhone battery, and then remove the iPhone motherboard.

Put the iPhone motherboard under a Black Trinocular Microscope to observe it.

After observation, we saw that the iPhone motherboard is oxidized and corroded. Use PCB cleaner to clean the iPhone motherboard, and then check iPhone motherboard middle layer, it's fine. Now use digital multimeters to measure the iPhone touch connector, when measured the 3 Pin, it's not resistance value, which is abnormal. 

Because the iPhone XS Max was damaged by dropping, so we suspected that the problem is on the connection between the iPhone touch board and RF board, which causes the iPhone touch connector 3 Pin has no resistance value.

Log in to the ZXW online account to check iPhone schematic diagram, the touch connector 3 Pin have 3.5V touch power supply.

Attach the iPhone XS Max motherboard to the SS-601K PCB fixture, and then use hot air gun and tweezers to remove the touch board. Clean it, and then reball it.

Use digital multimeter to measure the iPhone XS Max motherboard, all data measured are normal. Assemble the iPhone Xs Max, and turn it on, test the iPhone XS Max touch screen it works fine, the iPhone touch screen is back to work normally.



Labels:

Comments

Post a Comment

Popular posts from this blog

Complete Guide to Replacing Your iPhone Battery at Home

  Has your iPhone battery started showing the dreaded signs of age, like frequent charging, rapid draining, or even an untimely shutdown? Are you considering a battery replacement but feeling deterred by the potential cost or hassle of a trip to the Apple Store? Don't worry; with the right guidance, you can replace your iPhone battery at home quickly and safely, sparing your wallet and ensuring a future of longer charge cycles for your beloved device. Whether you have the latest model or an older version, we'll walk you through the process step by step. But before we get into the nitty-gritty, here's why a battery replacement might be in your best interest. Why You Should Replace Your iPhone Battery The lithium-ion batteries in our smartphones are not immortal. They degrade over time due to a variety of factors, such as age, temperature, and the number of charge cycles. Replacing an old battery can provide several benefits: Improved Performance: A new battery can result ...
Post a Comment
Read more

User Manual: JC V1 Programmer to fix iPhone light sensor/vibrator

As we know, the light sensor and vibrator is very important for iPhone screen. If you want to replace the iPhone screen, you also need to transfer the original screen data to the new iPhone screen(iPhone 8 to iPhone Xs Max),so you can make sure the new iPhone screen will work fine. Here is a  JC V1 programmer  to fix iPhone light sensor and vibrator problem (for iPhone 7- iPhone Xs Max), it also can repair iPhone baseband eeprom IC or iPhone logic eeprom IC problem. The JC V1 Programmer comes with 24-inch HD display screen, three-color LED indicator light, two small connecting seats (for connecting function panel) , two buttons and one function panel (including light sensor/touch connector, baseband function connector, vibration connector) It support 2 languages (Chinese/English) and three lines of code (read/write/burn/save), the function panel can be changed, the software can automatically update What’s the functions? - Repair iPhone Light sensor/ true ...
1 comment
Read more

Here: JC P11 iPhone Nand Test Fixture Specification Details

JC P11 iPhone Nand test fixture is on sale now, some users still confused for it, what's credit points for JC P11? Why it's cheap? As we know, JC P11 BGA110 programmer is the latest programmer for iPhone   iPhone XS Max,XS, X, 8P, 8  and iPhone 11 Pro max/pro/11, which is made by JCID factory.  Here are some  specification details for JC P11 programmer . 1. Main Functions. - Support to modify and write BGA110 NAND SYSCFG data (NAND Flash underlying data, such as SN/BT/WIFI and others); Unbind WIFI. - It doesn't require restoring the firmware for brand-new Nand flash, the SYSCFG data can be written directly. - Repair the Error 35 during firmware restoring for BGA110 NAND - Repair the DATA Error for BGA110 NAND - Support iPhone 8/8P/X/XS/XS Max currently, free software upgrade to support 11-11Pro Max in the future - Initiate the network charging mode, can purchase the points according to the demand, which greatly saves the equipmen...
Post a Comment
Read more